body,html,body * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    font-size: 1em;
}

html, body {
    width: 100%;
    height: 100%;
}

#app {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.player{
    flex: 1;
}

.player .video{
    width: 100%;
    height: 100%;
    background-color: #000000;
}
